{
  "manageEntity": {
    "action": "Update",
    "entityId": "785524612",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2d5b0a4c5ba67f1c25e5474904d1e964baecfa066d6cb48528d313ade1707d8b",
    "signature": "0x8d39c789f5f1bb11e8b5cbd235c0a7424fc6bf9f0760b74326503e3b00de1b7f5b16c6fa3900640172326edec900d20c5d5207cbbd0983ce81a0620278d59d441c",
    "signer": "0x17050b5997c258270D40397007E4e64153B748Fe",
    "userId": "785524612"
  }
}